diff options
Diffstat (limited to 'src/network/kernel/qhostinfo.cpp')
| -rw-r--r-- | src/network/kernel/qhostinfo.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/network/kernel/qhostinfo.cpp b/src/network/kernel/qhostinfo.cpp index d9d8396011..d25372ece6 100644 --- a/src/network/kernel/qhostinfo.cpp +++ b/src/network/kernel/qhostinfo.cpp @@ -164,6 +164,9 @@ int QHostInfo::lookupHost(const QString &name, QObject *receiver, int id = theIdCounter.fetchAndAddRelaxed(1); // generate unique ID if (name.isEmpty()) { + if (!receiver) + return -1; + QHostInfo hostInfo(id); hostInfo.setError(QHostInfo::HostNotFound); hostInfo.setErrorString(QCoreApplication::translate("QHostInfo", "No host name given")); @@ -183,6 +186,9 @@ int QHostInfo::lookupHost(const QString &name, QObject *receiver, bool valid = false; QHostInfo info = manager->cache.get(name, &valid); if (valid) { + if (!receiver) + return -1; + info.setLookupId(id); QHostInfoResult result; QObject::connect(&result, SIGNAL(resultsReady(QHostInfo)), receiver, member, Qt::QueuedConnection); @@ -193,7 +199,8 @@ int QHostInfo::lookupHost(const QString &name, QObject *receiver, // cache is not enabled or it was not in the cache, do normal lookup QHostInfoRunnable* runnable = new QHostInfoRunnable(name, id); - QObject::connect(&runnable->resultEmitter, SIGNAL(resultsReady(QHostInfo)), receiver, member, Qt::QueuedConnection); + if (receiver) + QObject::connect(&runnable->resultEmitter, SIGNAL(resultsReady(QHostInfo)), receiver, member, Qt::QueuedConnection); manager->scheduleLookup(runnable); } return id; |